Sodium Carboxymethylcellulose (CMC) Powder from China
Sodium carboxymethylcellulose is a water-soluble cellulose ether derived from cellulose, used as a thickener and stabilizer in food and pharmaceuticals. It falls under HTS 3912.31.00 as it is explicitly carboxymethylcellulose and its salts in primary form, meeting the 95% monomer content requirement for classification.
Duty Rate — China → United States
43.9%
Rate breakdown
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Verify purity and salt form via certificate of analysis to confirm 95%+ CMC content; ensure food-grade certifications like Kosher or Halal if applicable; declare exact CAS number (9004-32-4) to avoid misclassification as modified polymer